Assembling and dismantling of bicycle hubs



June 20, 1950 UY ASSEMBLING AND DISMANTLING OF BICYCLE HUBS Filed July'21', 1949 Lucie/v Ti INVENTOR.

BY j

AH'orney Patented June 20, 1950 UNITED STATES i ASSEMBLING ANDDISMANTLING OF BICYCLE HUBS Lucien Juy, Dijon-Cote-dilr, FranceApplication July 21, 1949, Serial No. 106,053

In France July 22, 1948 I 3 Claims.

The systems for tightening and loosening bicy- X cle hubs and the likeas practised to-day include either a set of hexagonal'or winged nutslocated on each side of the hub, or. a pin system, with a hollow spindleor a spindle in two portions.

There is an obvious improvement to form an arrangement that enables thetightening-up and slacking-off to be performed in a single handling,such an arrangement being fitted on present hubs without replacing thespindle or providing it with sturdiness. The improved device on theother hand takes up less room than a winged nut of standard pattern onthe side of the chain transmission and the speed change gear so that theassembly and dismantling is simplified, thus making the operation a muchquicker job.

This device forms the object of my invention.

It may be carried out in the following way given out as anon-restrictive example illustrated in accompanying drawings.

Fig. 1 is a general view thereof..

Figs. 2 to are detail views.

On a hub of standard pattern I (Fig. l) furnished'with its normalspindle 2-2a is screwed a collar 3.

This collar 3 is furnished with notches or flats 4 that engage, when thehub is in position, a check member of corresponding shape 5 (Fig. 4)This member 5 may be removable and fastened by a screw 6 on to the framebracket l or be built in one, either with the frame bracket I, thesupporting bracket for the derailleur gear 8 or any other auxiliary.

Furthermore, a collar 9 is secured on the spindle E end M (Fig. 3). Thiscollar 9 is mechanically connected with a contact ring ill by twoflanges I I and I2. These two flanges may be built in one with thecollar 8 or be fitted thereto by some standard means such as screw,rivet, welding, etc., and encase the ring it so as to hold it sideways,without preventing the parts 9 and ill from turning in relation to eachother. Between the rin In and the collar 9 is located the control leverI9 that assumes the special shape shown in Fig. 2.

This lever I9 has a suitably shaped hole drilled through it so as toenable it either to turn freely on the spindle 211 when the spindle isin the part I 3 of the hole, or to drive this spindle through one ormore fiat parts set up on the spindle 2a when the latter slides into thepart Hi.

The spindle 2 (Fig. 1) may be furnished with a contact ring I5 held bysetting in a shoulder of suitable shape arranged in the lock nut I'I(Fig. 5) to be found on normal hubs. If the pattern 10 a pin, whichallows it to retain all its originalof hub in question is not providednormally with this look nut I I, it is obvious that such a nut mayalways be fitted on the thread of spindle 2 through a subsequentoperation.

The ring I5 enables the spindle 2 to swing easily round its axis withoutcausing any jamming of the lock nut I'I, when tightening up on thebracket I.

The working procedure is as follows:

With the collars 3 and 9 slacked 01f by a few turns, the hub is engagedin its normal position inthe frame brackets I and I 8. At this time(Fig. 4) the collar 3 coming into contact with the check member 5 isheld against rotation round its axis, the lever I9 being then positionedso that the part It engages two corresponding flat portions of thespindle (on the end 2a) any rotation of the lever I9 will have theeffect of causing the spindle 2-2a to turn and will result in theclamping of the frame bracket I between the collar 3 and the ring I5.When the clamping is effected, an axial motion of the lever I9 willbring the spindle 2a into the part l3 (Fig. 2).

By keeping on rotating the lever I9 in the same direction, the spindle2a will not be subjected to any movement of rotation but the lever willtransmit motion to the collar 9. The latter by screwing up on thespindle2a will press the portion I3 of the lever and the ring II] on theone hand against the collar 20 on the other hand, for clamping betweensaid parts the frame bracket I8. The hub I is therefore, at thisparticular instant, fastened in the brackets I and It by the operationof a single hand-lever I9.

For slacking olT, the procedure takes place in the reverse direction.

The rotary movement (the reverse of the previous case) of the lever I9unscrews the collar 9 by several turns. By allowing the lever I9 toslide so as to bring its portion I4 on the flat parts of the spindle 2aand carrying on turning in the same direction, the unclamping of thecollar 3 from the side of the bracket I is obtained.

the object of reducing weight, with special dimensions with or withoutthe spindle being likewise specially machined, the working principleremaining of course the same.

My invention, therefore, is not limited to the above-mentioned exampleof execution, but takes in all modifications thereof falling within thescope of accompanying claims.

What I claim is:

1. A hub arrangement chiefly for association with bicycle framescomprising two lugs rigid with the frame, a spindle revolubly carried bysaid lugs, a hub fitted over said spindle between the two lugs, anut-shaped member screwed over either end of the spindle, a washer"rotatably engaging the inner end of each nut on one side andfrictionally engaging the cooperatingirame lug on the other, onenut-shaped member being provided with an elongated recess across thespindie axis, a lever the inner end of which fits permanently ands'lidingly inside said recess for constraining the nut-shaped parttc'rotate in unison with the lever round the spindle, said'lever 'beingprovided at its inner end with an elongated longitudinalslot openinginto-a'l'arger hole, the elongated slot "fitting for a predeterminedlongi- 'tudinal position of the lever over the spindle for allowingsimultaneous rotation of the spindle and corresponding nut-shaped memberunder-the action-of the lever, the lever engaging the hole for anotherposition for releasing the spindle, and means for normally preventingrotation of the nut-sha-ped-meniberon the side opposed to the lever.

2. A hub arrangement chiefly for association with bicycle framescomprising two lugs rigid with the frame, a spindle revolubly carried bysaid lugs, a hub fitted over said spindle between the two lugs, anut-shaped member screwed over either end of the spindle andfrictionally engaging the cooperating frame lug, a shiitable leverengaging positively and permanently one nut-shaped member and adapted toengage also positively the spindle for a predetermined position of saidlever and to release same for another position thereof and means fornormally preventing rotation of the nut-shaped member on the sideopposed to the lever.

3. A hub arrangement chiefly for association with bicycle framescomprising two lugs rigid with the frame, a spindle revolubly carried bysaid lugs, a hub fitted over said spindle between the two lugs, anut-shaped member screwed over either end of the spindle, a washerrotatably engaging the inner end of each nut on one side and'frictionally engaging the cooperating frame lug on the'other, ashiftabie lever engaging positively and permanently one nut-shapedmember and adapted to engage also positively the spindle for apredetermined"position-of said lever and "to release same for anotherposition thereof and means for normally preventing rotation of thenut-shaped member on the side opposed to the lever.

LUCIEN JUY.

No references cited.

